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RAIDER X CHASSIS FOR SIG 320 - FLUX DEFENSE RADIER X FDE PDW

RAIDER X CHASSIS FOR SIG 320 – FLUX DEFENSE RADIER X FDE PDW

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The Flux Raider X is a premium P320 chassis system — stronger, lighter, and faster than ever, with over a dozen enhancements for durability, ergonomics, and compatibility. Not a firearm. Upgrade your P320 to a proven PDW chassis trusted by professionals.
 
The Raider X P320 is the next evolution of the Flux Raider platform — a premium personal defense weapon chassis system engineered for the SIG Sauer® P320, M17, and M18 family of pistols. It’s not a firearm — it’s a purpose-built chassis upgrade, born from real-world feedback from special operations units and thousands of everyday users. Stronger, lighter, faster — and ready to keep you in the fight.

Key Improvements on the Raider X

  • Reliability & Durability
  • Overtravel stop prevents over-insertion of magazines
  • Reinforced frame with upgraded single-gate mold (stronger, fewer weak points)
  • Molded-in insert for the ejection spring bolt for better reliability
  • Stronger mag catch spring for positive magazine locks
  • Upgraded fencing around the dual mag release
  • Increased rail-lock spring force

Ergonomics & Usability

  • Redesigned grip top for better access to mag release and safety
  • Front frame reshaped to accept extended rails for increased LOP
  • Smoother magwells for faster reloads
  • Improved grip texture
  • New matte finish reduces glare
Compatibility Upgrades
  • Enlarged suppressor cutout for shorter barrels, comps, or cans
  • Added slot to bottom Picatinny rail for more accessory options
  • Optic rail adjusted and slotted for improved fit with all optics
  • Slide channel under optic rail raised for better clearance with adjustable iron sights
Compatibility
  • Compatible with SIG M17/18 and P320 (9mm, .40 S&W, .357 SIG)
  • NOT compatible with: P320 XTEN, .45 ACP variants, suppressor-height iron sights, or 15-round magazines
  • M17/18 manual safeties must be removed and replaced with an OEM pin (simple mod)
  • Safety mechanism may not work with all aftermarket or adjustable triggers — verify before use
  • To use with P320 carry, compact, or subcompact slides, you must run a comp, threaded barrel, or suppressor — failure to do so may cause injury
Description

Original price was: $419.99.Current price is: $330.33.

The Flux Raider X is a premium P320 chassis system — stronger, lighter, and faster than ever, with over a dozen enhancements for durability, ergonomics, and compatibility. Not a firearm. Upgrade your P320 to a proven PDW chassis trusted by professionals.
 
The Raider X P320 is the next evolution of the Flux Raider platform — a premium personal defense weapon chassis system engineered for the SIG Sauer® P320, M17, and M18 family of pistols. It’s not a firearm — it’s a purpose-built chassis upgrade, born from real-world feedback from special operations units and thousands of everyday users. Stronger, lighter, faster — and ready to keep you in the fight.

Key Improvements on the Raider X

  • Reliability & Durability
  • Overtravel stop prevents over-insertion of magazines
  • Reinforced frame with upgraded single-gate mold (stronger, fewer weak points)
  • Molded-in insert for the ejection spring bolt for better reliability
  • Stronger mag catch spring for positive magazine locks
  • Upgraded fencing around the dual mag release
  • Increased rail-lock spring force

Ergonomics & Usability

  • Redesigned grip top for better access to mag release and safety
  • Front frame reshaped to accept extended rails for increased LOP
  • Smoother magwells for faster reloads
  • Improved grip texture
  • New matte finish reduces glare
Compatibility Upgrades
  • Enlarged suppressor cutout for shorter barrels, comps, or cans
  • Added slot to bottom Picatinny rail for more accessory options
  • Optic rail adjusted and slotted for improved fit with all optics
  • Slide channel under optic rail raised for better clearance with adjustable iron sights
Compatibility
  • Compatible with SIG M17/18 and P320 (9mm, .40 S&W, .357 SIG)
  • NOT compatible with: P320 XTEN, .45 ACP variants, suppressor-height iron sights, or 15-round magazines
  • M17/18 manual safeties must be removed and replaced with an OEM pin (simple mod)
  • Safety mechanism may not work with all aftermarket or adjustable triggers — verify before use
  • To use with P320 carry, compact, or subcompact slides, you must run a comp, threaded barrel, or suppressor — failure to do so may cause injury

5 in stock

SKU 430115969 Category

Description

The Flux Raider X is a premium P320 chassis system — stronger, lighter, and faster than ever, with over a dozen enhancements for durability, ergonomics, and compatibility. Not a firearm. Upgrade your P320 to a proven PDW chassis trusted by professionals.
 
The Raider X P320 is the next evolution of the Flux Raider platform — a premium personal defense weapon chassis system engineered for the SIG Sauer® P320, M17, and M18 family of pistols. It’s not a firearm — it’s a purpose-built chassis upgrade, born from real-world feedback from special operations units and thousands of everyday users. Stronger, lighter, faster — and ready to keep you in the fight.

Key Improvements on the Raider X

  • Reliability & Durability
  • Overtravel stop prevents over-insertion of magazines
  • Reinforced frame with upgraded single-gate mold (stronger, fewer weak points)
  • Molded-in insert for the ejection spring bolt for better reliability
  • Stronger mag catch spring for positive magazine locks
  • Upgraded fencing around the dual mag release
  • Increased rail-lock spring force

Ergonomics & Usability

  • Redesigned grip top for better access to mag release and safety
  • Front frame reshaped to accept extended rails for increased LOP
  • Smoother magwells for faster reloads
  • Improved grip texture
  • New matte finish reduces glare
Compatibility Upgrades
  • Enlarged suppressor cutout for shorter barrels, comps, or cans
  • Added slot to bottom Picatinny rail for more accessory options
  • Optic rail adjusted and slotted for improved fit with all optics
  • Slide channel under optic rail raised for better clearance with adjustable iron sights
Compatibility
  • Compatible with SIG M17/18 and P320 (9mm, .40 S&W, .357 SIG)
  • NOT compatible with: P320 XTEN, .45 ACP variants, suppressor-height iron sights, or 15-round magazines
  • M17/18 manual safeties must be removed and replaced with an OEM pin (simple mod)
  • Safety mechanism may not work with all aftermarket or adjustable triggers — verify before use
  • To use with P320 carry, compact, or subcompact slides, you must run a comp, threaded barrel, or suppressor — failure to do so may cause injury

Additional information

Weight 1.4 lbs
Make/Model

Sig Sauer, P320
Model

P320
Make

Sig Sauer

Frequently Asked Questions

Are these brass cases and reloading components factory-new or once-fired? +

We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.

Will this case trimmer gauge or die set work with my progressive press setup? +

Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.

Do you enforce shipping restrictions on powder, primers, or live ammunition? +

Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.

How can I track my shipment to ensure delivery safety? +

Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.

Can I return precision measuring tools or die components if they don’t fit? +

We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.

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